ci: reduce renovate PR noise (#4892)

.github/renovate.json5

@@ -9,11 +9,13 @@
         "workarounds:all",
         // automerge minor updates
         ":automergeMinor",
+        ":automergeBranch"
     ],
     "labels": ["📦 dependencies"],
     "semanticCommits": "enabled",
     "semanticCommitType": "build",
     "rangeStrategy": "bump",
+    "rebaseWhen": "conflicted",
     "packageRules": [
         // group updates to related packages
         {

.github/workflows/workflow.yml

@@ -1,8 +1,6 @@
 name: Main workflow
 on:
   push:
-    branches:
-      - master
     paths-ignore:
       - "docs/**"
       - "**.md"